package com.pdp.utils;


import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // 判断是否需要拦截
        if(UserHolder.getUser() == null){
            // 没有用户，需要拦截，设置状态码
            response.setStatus(401);
            //拦截
            return false;
        }

        // 有用户， 放行
        return true;
    }
}
